[单选题]IP扩展访问列表的数字标示范围是多少（）。

正确答案 ：C

100-199

[单选题]路由器的配置文件startup-config存放在()里

正确答案 ：D

NVRAM

[单选题]When is a switched network that is running the Spanning Tree Protocol considered to be fully converged?

正确答案 ：D

when every operating switch port is in either the blocking or forwarding state

解析：解析：Explanation:

[多选题]Regarding DHCP (dynamic host configuration protocol), which two of the following choices below are true? (Select two answer choices)

正确答案 ：AB

The DHCP Discover message uses FF-FF-FF-FF-FF as the Layer 2 destination address.

The DHCP Discover message uses UDP as the transport layer protocol.

解析：A,B 解析：Explanation:

[多选题]Ezonexam is migrating to a private IP addressing scheme. Which of the following describe the use of private IP addresses? (Choose two)

正确答案 ：BD

Addresses that cannot be routed through the public Internet.

A scheme to conserve public addresses.

解析：解析：Explanation:

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